Icom IC-F2610 Service Manual Download

Page: 40 / 46

11-2 MAIN UNIT

VOLTAGE LINE

Explanatory notes

TX LINE

RX LINE

(EXP SP)

C586

47p

+8V

AFO

PAMIC

1/2VDD

R239

10k

R238

10k

C231

0.001

C230

2.2

R319

100

C307

0.1

IC9a
TA75W558FU

3
2

R382

1
2
3
4
5
6
7
8
9

10
11
12

VIN1
VOUT1
VOUT2
VIN2
VDD
LD
CLK
DI
VIN3
VOUT3
VOUT4
VIN4

VIN5

VOUT5

VOUT6

VIN6

VDAREF

RESET

GND

VIN7

VOUT7

VOUT8

VIN8

IC5
M62363FP-650C

R304

100k

R298

100

C87

2.2

R421
1k

R420
56k

DSTB
DCK
DDA

C412

0.001

R301
100k

NOISE

R303
100k

BEEP

C85
0.1

C557

C354

0.001

L57
1

C344

0.001

R348
3.9k

R388
2.2k

R173
10k

Q33
2SA1576

R387
1.2k

R172
10k

Q32
2SC4081

Q31
FMW2

R336

4.7k

R335

4.7k

Q30
FMS2A

R156

R157

1
2
3
4
5
6
7
8
9

REF_O
LD
R
V
VPD
PC_O
GND
RX
TEST1
FIN

IC12
MC145190F

FIN

VCC

TEST2

VDD

OP_B

OP_A

ENABLE

CLK

DATA_I

REF_I

C303

470p

C351

0.001

R316
47k

C414
0.001

C301
0.001

Q56
DTA144EU

R171
1k

C176
33p

R162
10

L44

0.56

C184

0.001

C563

0.001

R374

33k

C362

0.1

C187

R148 47

Q25
DTC144EU

Q26
DTA114EU

R160 1K

R159 1K

R158 1K

PDA

PCK

PSTB

PLLT

+8V

BUS LINE1

+5V

+18V

PLLIN

CENC

NOIS

R228
100

C226

C299

0.1

R232

100k

C228

0.0068

R231
100k

C224
0.047

R230
100k

C225

390p

3
2

IC21a
TA75W01FU

R242
1.8K

R243

1.5k

C237

C235

R412
680

Q64
DTC144EU

R189

47k

C104

2.2

C103

0.01

R188

15k

Q10
2SC4081

Q9
2SC4081

C105

470p

R185

18k

R187

47k

D38

1SS355

R184 100

C102
0.01

IC13
TC4W66FU

C181

R310

R154

680

R155
1.5k[H]
3.3k[O]

C422 0.0022

R153
560

R337
220

C302

0.1

C179

0.22

R419

10k

R226
68k/82k/120k

C218
4.7

R613

C178

47p

C374
4.7

R151

560K[M]

470k[O]

R300

100k/

560k/

470k

Q29
2SK880

C183

0.001

C182

X501
CR-573A

VCC
VCON

OUT

GND

C283

47p

C177

470p

C353

0.001

C348

47p

L58
1

C564

0.001

R163
100

C191
0.0047

R169
1k

R170

8.2k

4
1

C186

0.001

C185

2.2

R376

47k

R375
47k

C556

R377

47k

C364
4.7

C197
4.7

R222

470k

R224
27k[H]
22k[O]

R592 470

R591

BEEPOUT

R590

240k

R589
27k

C558
0.1

C560

2.2

C559
0.1

Q516
2SC4081

BEEP

R190
22k

R197
33k

R192

22k

C202

0.0022

5 4

C514

0.1

R521
180k

R522
220k

R593

18k

IC502
TC7S66FU

AFO

+8V

PAMIC

1/2VDD

L5V

R520

10k

Q505
DTC144EU

R400
390k

IC503
TA75S01F

R302 12k

R401
180k

C229
0.1

VCC
VCC
SP
SPE
+8V
FTXD
FRXD
POSW
MICE
MIC
GND
AFO

IC22

PC5023GR043-GJG

16
15
14
13
12
11
10

1
2
3
4
5
6
7
8

IN1-
OUT1
IN2-
OUT2A
OUT2B
REF
GND
VCC

TONE1
TONE2

TONEOUT

IN5-

IN3+

OUT3

IN4+

OUT4

C515

0.1

C516

R193

22k

C201

0.1

R195

240k

Q35
2SC4081

R196
27k

C247
0.1

R194
1k

C200

2.2

C524

0.0047

C487

47p

C486

47p

DTMF

R191
470

R258
8.2k

C234
0.1

R342
68k

C546
680p

R596
56k

R523
56k

R240
68k

C517
0.1

C233
0.1

R551

47k

R392 47k

R244

47k

C239

0.01

R245
47k

Q65
2SK1829

C426

30p

C238
100p

R544

100k

R247

150k

R248
150k

C246
0.018

R249

47k

R317
33k

R619
100

MICOUT

MICIN

SIGOUT

+8V

VCC

L5V

1/2VDD

+8V

VCC

1/2VDD

VCC

1/2VDD

MIC

C245

2.2

C242

0.001

C243

2.2

R251

560

C244

0.047

R250 82k

R297
100

MICIN

1/2VDD

VCC

PAMIC

R246
47k

C240

0.0022

C622

C601

C621

C620

C619

C618

C617

C616

C601,616-C622
22p[R]only

IC25
TC4W66FU

R292

100k

R291

100k

R296

100k

L47 0.56

L63 1

POSW

R309

L62 0.10

L502 0.10

L48 0.56

C526
47p

C356
47p

C290

0.001

FRXD

FTXD

C288

0.001

R293

100k

R294

100k

to FRONT
unit J2

IC21b
TA75W01FU

5
6

C321 47p

R256 390k

R389

47k

R255
10k

R257
22k

C320
0.047

R341

10k

C251
0.1

MCON

C293

0.001

1/2VDD

VCC

+8V

CPU5

R404

100k

R405

100k

R308

100k

R307

100k

L5V

BUS LINE2
BUS LINE3

1/2VDD

L5V

VCC

+8V

CPU5

DMOD

AMOD

AFO

PAMIC

UNLK

TUNE

C250 0.1

MAIN UNIT(1)

MAIN
UNIT
(2)

_SP

PSET

C588

22p[R]

47p[O]

R186
820

NWC

DMOD

AMOD

1/2VDD

SIGOUT

MICIN

SIGOUT

NWC

1
3

R418
47k

C355

0.001

C291

0.001

C289

0.001

R295

100

W11 [L]

W12 [M]

W13 [H]

W14

[10W]

W21

[EUR-5/-6/-7]

W25 [EUR-8

/-9/-10/-11]

W26 [EUR-12

/-13/-14]

W27

[EUR-01/-02]

W28

[EUR-71/-72]

SP
SPE

1/2 ADD

+5
+8V

1/2VDD
+5

1/2VDD

+5V

UNLK

+8V

+5V

1/2VDD

NWC

DMOD

C600 0.001[R]

L5V

1/2VDD

_SP

Note
[L]: Lo-band
[M]: Middle-band
[H]: Hi-band
[R]: R&TTE Type
[O]: OTHER

: Lo/Middle/Hi-band

to
optional
unit

OPV1

OPV2

OPV3

GND

OPT3

OPT2

OPV1

CCK

CSI

CSO

CIRQ

CCS

RMUT

BEEPOUT

AFON

MMUT

OPV2

OPV3

OPT3

OPT2

OPT1

SIG OUT

BUSY

AUX

BUSY

SIGOUT

DISC

AFOUT

OPT1

MIC IN

MIC OUT

PTT OUT

PTT IN

SCK

CPU5V

ECS2

ESI

GND

ESO

ECK

ECS2

ESI

ESO

ECK

CIRQ

CCS

AF OUT

DISC

RMUT

BEEP OUT

AFON

MMUT

VCC

+5V

GND

PTTO

PTTI

MICOUT

MICIN

C292

0.001

2.53V

2.45V

16.94V

LOCK 4.97V
UNLOCK 0.30V

4.97V

4.94V

SQL MIN 0.60V

SQL MIN 4.95V

4.96V

2.53V

2.45V

2.31V

0.64V

2.31V

0.64V

5.04V

4.61V

0.97V

5.03V

1.85V

W:0V
N:4.21V

W:4.66V
N:0V

2.08V

R:5.59V
T:5.38V

17.41V

2.53V

MEASUREMENT CONDITIONS
OSCILLO SCOPE:20MHz
VOLTMETER:1

Ω

11 - 2

Summary of Contents for IC-F2610

Page 1: ...UHF FM TRANSCEIVER iF2610 SERVICE MANUAL...

Page 2: ...n the transceiver until the transceiver is disconnected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT short any circuits or electronic part...

Page 3: ...5 1 5 2 INITIAL SET MODE 5 2 5 3 PLL ADJUSTMENT 5 3 5 4 RECEIVER ADJUSTMENT 5 4 5 5 TRANSMITTER ADJUSTMENT 5 5 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR...

Page 4: ...00 086 400 430 MHz L band 440 490 MHz M band 490 520 MHz H band 128 16 ch 8 banks 16K0F3E 25 kHz Wide 8K50F3E 12 5 kHz Narrow 20 C to 55 C 13 2 V DC negative ground 8 0 A 25 W 6 5 A 10 W 1 2 A 700 mA...

Page 5: ...CR 573A PLL IC IC12 MC145190F D A converter IC5 M62363FP 650C FRONT unit CPU IC20 HD64F3437F BIIS only HD64F3437F16 OTHER EEPROM IC27 CAT25C64SI Low pass filter circuit 1st mixer Q2 3SK166 RF amplifie...

Page 6: ...NIT Rolling type EX 1761 MEMORY EXPANSION UNIT OPC 617 J501 J4 J6 J7 OPC 821 OPC 822 UT 96 UT 103 UT 105 UT 109 UT 110 EX 1761 PIN ASSIGNMENT 1 5 6 9 Pin No Terminal name Description Specification 1 D...

Page 7: ...ket bolts from the front plate using an allen wrench 1 32 in Separate the front unit from the transceiver main unit Remove 4 screws from the RMK 1 front unit attachment to open the rear plate Connect...

Page 8: ...r circuit Q2 to produce a 30 875 MHz 1st IF signal The 1st IF signal is passed through the matching circuit L14 L15 and a pair of crystal filters FI1a b in order to obtain selection capability and to...

Page 9: ...signal from the noise detector Q10 is applied to the CPU IC20 pin 32 The CPU then analyzes the noise condition and controls the AMUT pin 56 and SP pin 79 ports to toggle the AF mute switches Q6 Q7 CTC...

Page 10: ...evel The signal from the buffer amplifier Q20 passes through the T R switch D17 and is amplified at the drive amplifiers Q17 Q15 and power module IC11 to obtain 10 W or 25 W depending on versions of R...

Page 11: ...ft register Prescaler Phase detector Loop filter Programmable counter Programmable divider Buffer Buffer Buffer Q20 Q18 Q19 17 18 19 PSTB IC12 PLL IC PCK PDA to transmitter circuit to 1st mixer circui...

Page 12: ...o the IC1 s amplifier function pin 8 The amplified signal is output from pin 9 and is then applied to the IC22 pin 4 IC F1610 s MAIN unit as SIG OUT signal The signal is amplified at the buffer amplif...

Page 13: ...lected Outputs high pass filter s characteris tics select signal High During CTCSS operation Outputs mic audio select signal to the audio switch IC25 High While Public address func tion is ON Outputs...

Page 14: ...or more Measuring range 1 50 W Frequency range 300 600 MHz Impedance 50 SWR Less than 1 2 1 Frequency range 0 1 600 MHz Frequency accuracy 1 ppm or better Sensitivity 100 mV or better Frequency range...

Page 15: ...rol Beep ON OFF Maximum beep level DTCS balance CTCSS DTCS Tone deviation Maximum voice deviation S meter level Transmit low power L1 Transmit low power L2 Transmit high power H MODE No NOTE 2 beeps l...

Page 16: ...80 000 MHz H Transmitting Operating freq 430 000 MHz L 490 000 MHz M 520 000 MHz H Transmitting Operating freq 390 000 MHz L 440 000 MHz M 480 000 MHz H Transmitting MAIN Rear panel Connect a digital...

Page 17: ...ating freq 400 000 MHz L 440 000 MHz M 490 000 MHz H Enter Initial Set Mode No 2 Refer to page 5 2 for details Make sure no signal is being applied to the antenna connector Receiving Connect an SSG to...

Page 18: ...0 MHz M 505 000 MHz H Enter Initial Set Mode No 4 Refer to page 5 2 for details No AF signals are applied to the micro phone connector Set an FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF D...

Page 19: ...3GEYJ 104 V 100 k B R46 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R47 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R48 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R49 7030003600 S RESISTOR ERJ3GEYJ 223...

Page 20: ...30 1590002290 S TRANSISTOR FMS2A T148 T Q31 1590002300 S TRANSISTOR FMW2 T148 T Q32 1530002060 S TRANSISTOR 2SC4081 T106 R T Q33 1510000510 S TRANSISTOR 2SA1576A T106R T Q35 1530002060 S TRANSISTOR 2S...

Page 21: ...6200002710 S COIL ELJFC 1R8K F B L42 6200004230 S COIL ELJNC R56K F B L43 6200004110 S COIL MC152 E558ANA 100050 T L44 6200004230 S COIL ELJNC R56K F B L45 6200002860 S COIL NL 252018T 4R7J T L46 620...

Page 22: ...3GEYJ 103 V 10 k H B 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 k M B 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 k L B R151 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 k L H B 7030003770 S RESISTOR ERJ3GEYJ 56...

Page 23: ...030003370 S RESISTOR ERJ3GEYJ 271 V 270 E B 7030003410 S RESISTOR ERJ3GEYJ 561 V 560 D B 7030003430 S RESISTOR ERJ3GEYJ 821 V 820 Other B R386 7030000180 S RESISTOR MCR10EZHJ 22 220 M B 7030000190 S R...

Page 24: ...0 S RESISTOR ERJ3GEYJ 220 V 22 B only T C2 4030011050 S CERAMIC GRM31M3C2H3R0CY21L GRM42 6 CJ C B 4030011060 S CERAMIC GRM31M2C2H4R0CY21L GRM42 6 CH Other B 4030011080 S CERAMIC GRM31M2C2H6R0DV01L GRM...

Page 25: ...120 4030006860 S CERAMIC C1608 JB 1H 102K T T C121 4030006860 S CERAMIC C1608 JB 1H 102K T T C122 4030006860 S CERAMIC C1608 JB 1H 102K T T C123 4030007090 S CERAMIC C1608 CH 1H 470J T T C124 45100057...

Page 26: ...B C287 4030007090 S CERAMIC C1608 CH 1H 470J T B C288 4030006860 S CERAMIC C1608 JB 1H 102K T B C289 4030006860 S CERAMIC C1608 JB 1H 102K T B C290 4030006860 S CERAMIC C1608 JB 1H 102K T B C291 40300...

Page 27: ...C1608 CH 1H 470J T B C527 4030011600 S CERAMIC C1608 JB 1E 104K T B C528 4030007090 S CERAMIC C1608 CH 1H 470J T B C529 4030007090 S CERAMIC C1608 CH 1H 470J T B C530 4030007090 S CERAMIC C1608 CH 1H...

Page 28: ...CONNECTOR 52365 0691 T J501 6510021300 S CONNECTOR 52365 1091 T W3 7030003860 S RESISTOR ERJ3GE JPW V B W4 8900004540 CABLE OPC 453 T W6 7120000470 JUMPER ERDS2T0 T W11 7030003860 S RESISTOR ERJ3GE JP...

Page 29: ...O DESCRIPTION QTY J2 6450000140 Connector HSJ0807 01 010 1 J5 6510018040 Connector 52330 1217 1 W4 8900004540 Cable OPC 453 1 MP1 8510006810 DC DC case 1 MP2 8510009980 1705 VCO case 1 MP4 8510010080...

Page 30: ...6 C MP3 C J2 M MP15 C MP13 M MP2 M MP4 M MAIN Top side MP6 M MP18 M J5 M MP2 C MP9 M MP12 M MP16 M MP17 M MP2 C MP14 M MP1 M MP8 M MP15 M W4 M MP8 C MP5 C MP5 C MAIN UNIT Bottom side FRONT UNIT MP1 C...

Page 31: ...ymbol BR Symbol LL Symbol R25 Symbol SE Symbol MFO Symbol MGO Symbol DAQ Symbol 4L Symbol FJ Symbol K1 Symbol TG Symbol XG Symbol K Symbol U78 Symbol 14 Symbol 113 Symbol 16 Symbol 24 Symbol 64 Symbol...

Page 32: ...SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT TOP VIEW 1 2 3 4 5 6 7 P4 MP2 P3 P2 P1 P0 8 9 0 8V 2 8 1 7 to Microphone J1 AFO MICE GND CLON PTT MIC HANG 9 1...

Page 33: ...1 48 33 32 17 49 64 1 16 4 8 5 1 128 103 39 64 38 102 65 VCC 1 to MAIN unit J5 12 J2 SQL SP SPE 8V FTXO FRXO POSW MICE MIC GND AFO MP10 MP11 9 2 BOTTOM VIEW FRONT UNIT...

Page 34: ...ptional cable OPC 617 PTT GND IN GND DISC GND PAAF GND HORN DIM VCC J4 11 1 J7 ESI ECS2 CPU5V ECK 5 1 6 2 ESO GND to optional unit EX 1761 EEPROM PTT IN PTT OUT MIC OUT MIC IN AUX BUSY NC SIG OUT OPT1...

Page 35: ...1 1 4 1 5 8 5 10 6 8 16 9 1 1 1 4 8 5 4 8 5 7 11 20 10 1 14 8 1 20 11 1 10 4 8 5 MP7 MP11 MP10 SP MP19 MP13 MP13 9 4 BOTTOM VIEW MAIN UNIT EUR 01 02 12 13 71 72 ONLY...

Page 36: ...tional cable OPC 617 PTT GND IN GND DISC GND PAAF GND HORN DIM VCC J4 11 1 J7 ESI ECS2 CPU5V ECK 5 1 6 2 ESO GND to optional unit EX 1761 EEPROM PTT IN PTT OUT MIC OUT MIC IN AUX BUSY NC SIG OUT OPT1...

Page 37: ...1 1 4 1 5 8 5 10 6 8 16 9 1 1 1 4 8 5 4 8 5 7 11 20 10 1 14 8 1 20 11 1 MP13 10 4 8 5 MP7 MP11 MP10 SP MP13 9 6 BOTTOM VIEW MAIN UNIT OTHER...

Page 38: ...144EU Q26 DTA114EU IC13 TC4W66FU Q30 FMS2A Q31 FMW2 Q32 Q33 Q505 DTC144EU X501 R8V T8V HV VCC CPU5V VRX TMUT PWON 8V MT8V 5V CTRL 5V IC16 TA7808F Q36 2SD1664 Q37 2SC4116 D27 DA204U Q38 2SD1664 Q39 DTC...

Page 39: ...1 2M R2 RV 158 R3 1M C10 0 22 R4 1k R5 100k R7 10k R8 220k 1 2 3 4 5 IC3 S 80842CLMC B63 T2 D1 MA111 R6 470k R9 220k Q1 2SC4081 C11 0 01 R10 100k R17 100k Q3 DTC114EU 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V...

Page 40: ...D AFO IC22 PC5023GR043 GJG 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 IN1 OUT1 IN2 OUT2A OUT2B REF GND VCC TONE1 TONE2 TONEOUT IN5 IN3 OUT3 IN4 OUT4 C515 0 1 C516 10 R193 22k C201 0 1 R195 240k Q35 2SC408...

Page 41: ...4p C141 3p L 4p O D17 MA77 R117 1 5k C138 6p H 4p O C135 470p C137 0 001 R115 3 3k R113 22 H 4 7 O L27 27n 22n 15n C469 220p C132 4p H 3p O R116 56 H 100 O C134 0 001 Q16 2SC3356 C424 6p H 7p O L65 15...

Page 42: ...70 C587 47p C606 22p R C93 220 IC8 LA4425A R86 22k C369 0 001 C92 0 1 C91 0 0022 D50 1SS355 SP Q7 DTC363EK AFO C330 0 1 R349 10k BEEP R81 10k C86 0 1 C413 0 0047 IC7 M5282FP VCC2 IN IN OUT GND VCC VCA...

Page 43: ...SK166 C28 0 001 R14 4 7k C573 47p C625 22p R C576 2p H C23 4p H 2p O C328 47p TUNE R609 47k R608 27k L 39k H 33k M R 47k O C430 470p C429 47p C325 0 001 C331 470p W509 C428 470p R11 150k D8 HVU350B C2...

Page 44: ...tes Decoding signal Encoding signal J1 1 2 3 4 5 6 7 8 9 SIG OUT SIG OUT DISC IN DISC IN 5V GND OPT1 SCK SI SO GND CIRQ CCS 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 to IC F2610 M...

Page 45: ......

Page 46: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14005HZ C1U C 1999 2003 Icom Inc...

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